Add AI capability

model/lib/ai/ai_capability.dart

@@ -0,0 +1,20 @@
+import 'package:jmap_dart_client/jmap/core/capability/capability_properties.dart';
+import 'package:json_annotation/json_annotation.dart';
+
+part 'ai_capability.g.dart';
+
+@JsonSerializable(includeIfNull: false)
+class AICapability extends CapabilityProperties {
+  AICapability({this.scribeEndpoint});
+
+  final String? scribeEndpoint;
+
+  factory AICapability.fromJson(Map<String, dynamic> json) => _$AICapabilityFromJson(json);
+
+  Map<String, dynamic> toJson() => _$AICapabilityToJson(this);
+
+  factory AICapability.deserialize(Map<String, dynamic> json) => _$AICapabilityFromJson(json);
+
+  @override
+  List<Object?> get props => [scribeEndpoint];
+}

model/lib/ai/capability_ai.dart

@@ -0,0 +1,3 @@
+import 'package:jmap_dart_client/jmap/core/capability/capability_identifier.dart';
+
+final capabilityAI = CapabilityIdentifier(Uri.parse('com:linagora:params:jmap:aibot'));